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Old 08-11-2005 | 01:03 AM
  #463  
DarkWombat
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Joined: Sep 2003
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From: Bay Area, CA
Default RE: E-FLIGHT BLADE CP

Yeah, the symmetrical blades are thicker than the semi-symmetrical ones, so it will be a tighter fit. Horizon is right, you'll have to sand down those plates, but that's a little strange. I didn't have that problem, they're a bit of a squeeze to get in, sure, but once I get to the screw holes and screw them in loosely they're fine.

About my heli: I was wrong with the original pitch and throttle curves, and now that I think of it I was stupid for putting them like that. Hovering is less pitch and more head speed, the more head speed the more stable it is. So to get a good hovering throttle/pitch curve set, you need an area around midstick where the throttle increases linearly or exponentially while the pitch stays relatively the same. After making this adjustment things are much better now.

Now the bad news. I was doing extensive testing to get the tail mixing right, and just to make sure my battery was ok I checked it on the charger voltmeter: 10.26 volts, still plenty of time to go. So I do more testing for another 8 minutes or so and the motor starts running down so I say ok, time to recharge the battery. I plug it into the charger and it reads.... 7.26 volts! I panic like crazy and immediately put the battery outside on the bricks for 15 minutes (I charge my battery packs indoors in a fireplace because there's an outlet close enough for the charger). After about 20 minutes the battery has cooled down and the voltmeter reads 8.99 volts. It's close to 9, should be ok...so I take it cautiously and set the battery to charge at .15 amps, 1/10C rate. An hour and a half later and the charger is showing the battery's just about done, and the voltage is listed as 11.6 volts! Looks like my battery's going bye-bye soon, it managed to overdischarge bigtime in that time span, every time before that when I'd get around 10.25 volts on the meter, I could run easily another 10 minutes and then bring it inside and charge, just hitting the 9.75 volt mark. But it seems that because I was constantly running the motor at a high speed, the battery drained faster than I expected, and since I wasn't actually flying it I didn't notice the drastic performance decrease. I'll try finishing the battery charge tomorrow and see how far it goes, fly it another time and check my voltages, but it looks like it's going to have to get dumped